5月18日,,終於把linux0.11安到一台真正的pc上了

 靠,這個任務可真長,拖拖拉拉的快幾個月了,,中間停下來學別的去了就把linux的事放下了,,直到見到了RAlf Brown' Interrupt List,,,不過這次裝的結果怎樣,自己的目的始終就是學習linux,,下一步就是要更多更努力的學習,,還有網路部分,爭取把linux1.0的網路部分安到0.11上 :>
我感謝下午的自己沒像往常那麼懶,,拆機箱把硬碟由slAve換到mAster,其實linux0.11的核心並不需要怎麼修改就可以用了,,當然是從結果上看 :>
這兩天鬱悶主要是因為硬碟是slAve,mAster的是塊壞的,導致像port 0x1f1發reset返回是7f,總是不對,,換過來後就好多了
其實就是改了if (drive>1 || heAd>15)
                  panic("Trying to write bAd sector");
因為硬碟大了heAd肯定會大於15,,而且硬碟要用NORMAL mode,,可我不明白,NORMAL的不是只能訪問520(還是512)mb的硬碟範圍嗎,,而我的minix分區明顯已經超過了,,,,要繼續學習!!
    linux0.11的execve()只能執行那種最老的A.out的檔案,開始的時候/bin/sh拷的是rh9裡的bAsh,,是ELF格式的,導致無法用
    再學習東西的時候一定要筆記,,要不過不了多久就會鬱悶第2遍.

前幾天查的RAlf Brown' Interrupt List中和IDE相關的部分:

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zmba，您好！

    是我錯了,原來看linux0.11並不明白其目的在於通過0.11而瞭解核心,瞭解現在的核心,,當時就這樣過去了,,又是一次機會,被放過去了....
    RAlf Brown' Interrupt List:
----------R12--------------------------------
CMOS 12h - IBM - HARD DISK DATA
Notes: A PC with a single type 2 (20 Mb ST-225) hard disk will have 20h in
   byte 12h
 some PCs utilizing external disk controller ROMs will use type 0 to
   disable ROM BIOS (e.g. Zenith 248 with Plus HardCard).

Bitfields for IBM hard disk data:
Bit(s) Description (Table C0014)
 7-4 First Hard Disk Drive
 00 No drive

01-0Eh Hard drive Type 1-14
 0Fh Hard Disk Type 16-255
  (actual Hard Drive Type is in CMOS RAM 19h)
 3-0 Second Hard Disk Drive Type
 (same as first except extrnded type will be found in 1Ah).
----------R12--------------------------------
CMOS 12h - IBM PS/2 - SECOND FIXED DISK DRIVE TYPE (00-FFh)
SeeAlso: CMOS 11h"IBM PS/2"

Copied from Ralf Brown's Interrupt List

heAd  sect         cyl     wpcom            lzone   ctl
磁頭數   每磁軌扇區數    柱面數     寫前預補償柱面號     磁頭著陸區柱面號   控制位元組

 

03F6  rW  FIXED disk controller data register (see #P0871)

Copied from Ralf Brown's Interrupt List

Bitfields for fixed disk controller data register:
Bit(s) Description (Table P0871)
 7-4 reserved
 3 =0  reduce write current
 =1  head select 3 enable
 2 disk reset enable
 1 disk initialization disable
 0 reserved
SeeAlso: #P0862,#P0872

Bitfields for hard disk controller:
Bit(s) Description (Table P0872)
 6 FIXED DISK write gate
 5 FIXED DISK head select 3 / reduced write current

 4 FIXED DISK head select 2
 3 FIXED DISK head select 1
 2 FIXED DISK head select 0
 1 FIXED DISK drive 1 select
 0 FIXED DISK drive 0 select
SeeAlso: #P0871

Copied from Ralf Brown's Interrupt List

Bitfields for diskette controller main status register:
Bit(s) Description (Table P0865)
 7 =1  RQM  data register is ready
 =0  no access is permitted
 6 =1  transfer is from controller to system
 =0  transfer is from system to controller
 5 non-DMA mode
 4 diskette controller is busy
 3 drive 3 busy (reserved on PS/2)
 2 drive 2 busy (reserved on PS/2)
 1 drive 1 busy (= drive is in seek mode)
 0 drive 0 busy (= drive is in seek mode)
SeeAlso: #P0862

Copied from Ralf Brown's Interrupt List

Bitfields for Hard Disk Controller error register:
Bit(s) Description (Table P0512)
---diagnostic mode errors---
 7 which drive failed (0 = master, 1 = slave)
 6-3 reserved
 2-0 error code
 001 no error detected
 010 formatter device error
 011 sector buffer error
 100 ECC circuitry error

101 controlling microprocessor error
---operation mode---
 7 bad block detected
 6 uncorrectable ECC error
 5 reserved
 4 ID found
 3 reserved
 2 command aborted prematurely
 1 track 000 not found
 0 DAM not found (always 0 for CP-3022)
SeeAlso: #P0513,#P0514

Bitfields for hard disk controller drive/head specifier:
Bit(s) Description (Table P0513)
 7 =1
 6 LBA mode enabled, rather than default CHS mode
 5 =1
 4 drive select (0 = drive 0, 1 = drive 1)

 3-0 head select bits (CHS mode)
 logical block address, bits 27-24 (LBA mode)
SeeAlso: #P0512,#P0514

Bitfields for hard disk controller status register:
Bit(s) Description (Table P0514)
 7 controller is executing a command
 6 drive is ready
 5 write fault
 4 seek complete
 3 sector buffer requires servicing
 2 disk data read successfully corrected
 1 index - set to 1 each disk revolution
 0 previous command ended in an error
SeeAlso: #P0512,#P0515

(Table P0515)
Values for hard disk controller command codes:
Command  Spec Type Proto Description   class:
 00h  opt nondata NOP
 08h    device reset
 1xh  opt nondata recalibrate     1
 20h  req PIOin read sectors with retry    1
 21h  req PIOin read sectors without retry   1
 22h  req PIOin read long with retry    1
 23h  req PIOin read long without retry    1
 30h  req PIOout write sectors with retry   2
 31h  req PIOout write sectors without retry   2

 32h  req PIOout write long with retry    2
 33h  req PIOout write long without retry   2
 3Ch  IDE opt PIOout write verify     3
 40h  req nondata read verify sectors with retry   1
 41h  req nondata read verify sectors without retry 1
 50h  req vend format track     2
 7xh  req nondata seek      1
 8xh  IDE vendor vend vendor unique 3
 90h  req nondata execute drive diagnostics   1
 91h  req nondata initialize drive parameters   1

 92h  opt PIOout download microcode
 94h E0h IDE opt nondata standby immediate    1
 95h E1h IDE opt nondata idle immediate     1
 96h E2h IDE opt nondata standby      1
 97h E3h IDE opt nondata idle      1
 98h E5h IDE opt nondata check power mode    1
 99h E6h IDE opt nondata set sleep mode     1
 9Ah  IDE vendor vend vendor unique 1
 A0h  ATAPI   packet command
 A1h  ATAPI opt PIOin ATAPI Identify   (see #P0524)

 B0h  SMART opt  Self Mon., Analysis, Rept. Tech. (see #P0527)
 C0h-C3h IDE vendor vend vendor unique 2
 C4h  IDE opt PIOin read multiple     1
 C5h  IDE opt PIOout write multiple     3
 C6h  IDE opt nondata set multiple mode    1
 C7h  ATA-4   Read DMA O/Q
 C8h  IDE opt DMA read DMA with retry    1
 C9h  IDE opt DMA read DMA without retry    1
 CAh  IDE opt DMA write DMA with retry    3
 CBh  IDE opt DMA write DMA w/out retry    3

 CCh  ATA-4   Write DMA O/Q
 DAh    get media status
 DBh  ATA-2 opt vend acknowledge media chng  [Removable]
 DCh  ATA-2 opt vend Boot / Post-Boot  [Removable]
 DDh  ATA-2 opt vend Boot / Pre-Boot (ATA-2)  [Removable]
 DEh  ATA-2 opt vend door lock   [Removable]
 DFh  ATA-2 opt vend door unlock   [Removable]
 E0h-E3h   (second half of commands 94h-96h)
 E4h  IDE opt PIOin read buffer     1
 E5h-E6h   (second half of commands 98h-99h)

 E8h  IDE opt PIOout write buffer     2
 E9h  IDE opt PIOout write same     3
 EAh  ATA-3 opt  Secure Disable   [Security Mode]
 EAh  ATA-3 opt  Secure Lock   [Security Mode]
 EAh  ATA-3 opt  Secure State   [Security Mode]
 EAh  ATA-3 opt  Secure Enable WriteProt  [Security Mode]
 EBh  ATA-3 opt  Secure Enable   [Security Mode]
 EBh  ATA-3 opt  Secure Unlock   [Security Mode]
 ECh  IDE req PIOin identify drive     1 (see #P0516)

 EDh  ATA-2 opt nondata media eject   [Removable]
 EEh  ATA-3 opt  identify device DMA      (see #P0516)
 EFh  IDE opt nondata set features     1 (see #P0535)
 F0h-F4h IDE  vend EATA standard
 F1h    Security Set Password
 F2h    Security Unlock
 F3h    Security Erase Prepare
 F4h    Security Erase Unit
 F5h-FFh IDE vendor vend vendor unique 4
 F5h    Security Freeze Lock
 F6h    Security Disable Password
SeeAlso: #P0512,#P0514

Copied from Ralf Brown's Interrupt List

　　　　　　　　致
禮！
     

　　　　　　　　uty
　　　　　　　　zmba@tom.com
　　　　　　　　　　2005-05-12

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